Fastening device



July 19, 1932. R N 1,868,178

FASTENING DEVICE Filed June 27, 1929 2 Sheets-Sheet l July 19, 1932.

B. RUBIN 1,868,178

FASTENING DEVICE 2 Sheets-Sheet 2 Filed June 27, 1929 Patented July 19, 1932 a ras BENJAMI -Rosin. on PH LA ELPHIA, PENNSILVANIA; AssIeivoR, BY manor sat. MESNE ASSIGNMENTS, T0 RUBIN, rare-Hrs "oonro mrron, e conronn'rronor DELA- 'WABE Application filed June 27,

This application is a continuation inpart of my copendingapplication, Serial. No.

299,404, for detachable tread'inemberffiled ing devices and more particularly has ref-.

erence to a fastening arrangement for securing treads on shoe heels. 8

. Previous to this time the various devices employed for attaching treads on heels have not aliorded as secure a union as is desirable and necessary in articles of this character. It will be apparent that a loose connection may cause discomfort to the wearer while the loss of a tread under certain conditions may be attended with disastrous consequences.

If a tread is loosely fitted on a heel, moisture and other foreign material is'allo'wed to enter and collect which ultimately may cause irreparable damage to a heel and tread. Also where a tread is insecurel'y at tached it may be easily pulled loose on catching in some obstruction and cause the wearer to fall, thus often precipitating bodily injury.

The numerous attachments provided inthe past have usually included movable'members or spring operated catches to secure a'tread in place on a heel. These devices are obviously subject to strains over long continued periodsof use which either causes the movable members to become dislodged or the'catches to spring so as to negative theeffectiveness of the same.

An object of this invention is to provide an attachment device in which a rigid wedging action is obtained between corresponding members. 7

Another object of this invention is to provide'a'n'attachmentdevice in which a rigid Wedging action with a spring effect is ob tained between corresponding members.

Another object of this invention is to provide an attachment device in which a rigid wedging action with a spring effect is obtained between corresponding memberswhich are automatically locked in position.

Still another object of this invention is to provide a device for attaching a tread to a shoe heel embodying a rigid structure.

A further object of this invention is to prorasrniime in nrion I 1929.. Serial manta heel embodying a rigid structure with a spring efiect.

vide a device for attaching a tread toa shoe A still further object ofthisinvention to providea device for'iattaching a tread toa shoe heel embodying" a rigid structure with a spring efi'ect which is automatically locked in position when attached.

With these and other objects in view which may be incident to my improvements, the inventioncon'sists the parts and combinations to be hereinafter set forth and claimed, with the understanding that the several necessary elements comprising my invention may be varled in construction, proportions and arrangemen't without departing from the spirit and scope of the appended claim. i

In order to make my invention more clear lyunderstood', have shown in the 'a ccompanying drawings meansforlcarrying the same into practical effect without limiting the lmprovements in their useful applications'to the particular constructions which, for the purpose of explanatiorn have been, made'the subject of illustration. i

specification: Figure l'is aside elevational view of a. conventional shoe heel showing a tread member mounted thereonby the attachment de-' vice forming the subjectmatter of this invention. v Figure 2 is a top view of the plate fixed to.

ing the plate fixed to the tread in the plan.

'to the tread, taken on line 33fof Figure 1, showing the plate fixed to the'heel in the plan. Figure 4 is a sectional view taken on line 44ofFigure2.'

Figure 5: is a sectional viewtaken on line 51- 5016 Figure 2. h r v 3 Figure dis a sectional view showing the ,manner ofdetaching the corresponding plates forming the device. '1 I I Figure 7 isa side view ofthe preferred form of nail formeddon the bottom plate, ihown prior to'being. driven ina tread mem- '75 In the drawings forming a part of the,

i. 8 Figure 3 is a bottom view of the platefixed f L i Figure 8 isx a front view of the nail subsequent to being driven in a tread member.

. Figure 9 is a bottom view'of the nail prior to being driven.

'10 1 fied form of the lnventlon ,inwhich separate Figure isa'side view of the nail sequent to being driven. I

Figure .11 is a side View of alsplit nail of the characterof the nail shown in Figures 7 through. 10, subsequent to being driven. V Figure 12 is a perspective view of a mod-itongues and projections aresubstitutedfor 19-19 of Figure 18.

thos normally carried by the low a Figure 13 is a top View of a modified 'f r Ofplate.

Figure'14is asectional view taken on line'- 144-14 of Figure 13.

' Figure 15 is a top view of another modi-, V fied form of plate.. i

.fiedform of attachment device adaptable for] other usages.

Figure 16 is a perspe Figure 17 isa bottom view of a m odified form ofbottom plate.

Figure 18 is a top view of a bottom plate for use in connection With rubber heels;

on line.

' Figure 19 is a sectional. view taken Figure 20 is a sectionalview takenonline 20 20 of Figure'lS. V I

Figure 21 isa sectional View showing a separatetongue fixed in .a rubber heel.

V Figure 22 is a perspective view of a modifie'd formof attachment device. 7 35 Referring more particularly by numerals to the drawings, in which the same and similar elements are designated by like symbols of reference throughout, and more particularly to Figure 1, there is shown a heel 1 suitably attached at the top of'the bottom sole of a conventional shoe of a feminine character. A plate 2 is mounted on the bottom of the .heel and a plate 33 carrying 'atread member 4is attached thereto; The plate .2,

as shown in Figure 2, is. of the same con- ;figuration asthe bottom of the heel and is 7 provided with .a plurality ofsecuring members 5 and 6 integrally formed therewith,

the same being stamped from the plate as indicated at 7a nd 8. The-members 5 and 6 .areadapted to-be driven into the bottom of .the' heel to securethe plate thereon. It is manifest, however,- that ordinary screws or nails 'may be' substituted for the members 5 and 6 if found desirable,

" A plurality of slots 9 and lljopening into curved tapered grooves 12 and 13 are formed tance between the slots. I The grooves 12 andon opposite sides of the plate, the curve of the grooves conforming iwith the circumference of a clrclehavlng a diameter equal to the dis- 13 terminate at the endsopposite. the slots 9 and 11, flush withthe top surface of the plate, opening into the slots: substantially flush with the bottom of the plate.- The slots ctive view of a modi- 9 and 11 are oppositely disposed in longitudinal alignment on the plate, with the grooves '12 and 13 extending in opposite directions.

Oppositely disposed longitudinally extend ing slots 14 and 15 are formed on the sides of the plate, transversely with respect to the slots 9 and 11. r

The plate 3, as shown in away on each side of the center as at 16' and 17., the front and'rear portions remaining connected by across member 18. A plurality of tongues 19 and 21 are formed on opposite Figure 8, is cut sides ofthe cross member 18 adjacent the ends I thereof. The tongues 19 and 21 are taper-ed ing a diameter equal to the distance between the same,similar to the grooves12' and 13in the plate 2, the tongues being adapted for en gagement with the slots 9 and 11.

A plurality of projections22 and 23 are towards the ends and curved in.conformation with the circumference of a circle hav-- formedon the sides of the innerrim of the cut away portions 16 and 17, the same being bent upwardly. The projections 22 and 23,

longitudinally extending. and oppositely disposed in transverse alignment, are intended for engagement with the slots 14 and 15 in the plate 2. r I. A plurality of projections 24, bent down- Wardly to form nails, are provided around the edges of the cut away portions16 and 17. I The nails, better illustratedin Figures 7 and 8, aretapered on one side as shown at 25 so as to. bend on being driven, and tapered on the opposite edgesasat 26 and 27 to facilitate;

driving.

In applying the attachmentndevice to a tread member such as .4 and'fixedly secured thereon by driving in the nails 24, formed thereon. The entry of the nails 24 intothe treadmember will be facilitatedby reasonof the tapered portions 26 and 27, and on being driven will curve so as toform a hook, as

shown in Figure 10, by reason of the tapered 7 portion 25. The front of the nail, however, will remain straight, asshown in Figure 8, 'Without'any provision for deflecting the same from its normal path.

In this connection, hOWGVBI'ylt isinanifest that the nailmay be tapered in addition, or y the tapering shown may be modified, so as to drivethe nail in any desired direction to :obtain the holding-effect found most suitable.

Also, the integrally formed nails 24 may be dispensed with and the plateattached to the tread member'in any otherdesirable manner.

- After the plates 2 and 3 have been mounted on the bottom of a heel andthe top of a tread member, respectively, the same may be connected so as to attach the tread to the heel by inserting the tongues 19 and 21Hcarried on bottom plate 3, in the slots 9 and ll formed inrthe plate 2, whereupon the tongues may be rotated so as to engage the. grooves 12 After the tongues have been? rotated to the .full extent, theprojections 22 and 23 formed on the plate 3 engage the slots 14 and 15 in the plate 2, as shown in Figure 5, thus preventing rotation of the, tongues in either direction with respect to the grooves, and locking the plates together. It will be'particularly noted that the thickness of the attach- Inent device is no more than that of. the juxtaposed plates, that is, the tongues 19 and 21 and projections 22 and 23 are self-contained and do not stand above or below the surface of the respective plates.

It will be appreciated that as the plates are preferably formed of any suitable metalsuch as brass, a rigid structure is afforded. In this connection, however, it is to be pointed out'that a spring effect exists in the plate 3 in attaching or detaching the device, so that it is not required that the tread member flex.

WVhen it is desired to disengage the plate so as to remove thetread member, the edges of the same are grasped on theside adjacent the projections 22 and 23 and the same pulled from the slots 14 and 15. 'As is depicted in Figure 6, it will be seen that this operation outwardly so as to disengage the projections :will not necessarily cause a flexing of the tread member, but will spring the edges of the plate down from the center, allowing disengagement of the projections22 and 23.with-' out bending the tread member.

When interengaged, it will be appreciated that a close connection will be afforded between the respective plates serving to firmly retain the tread in place and prevent the entrance of moisture or other foreign material. In addition to the spring efiect residing in the bottom plate 3, it will likewise be appreciated that the tongues 19 and 21 possess some degree of resiliency, so as to insure a constant wedging action between the plates.

It will be apparent that the invention is subject to numerous modifications. For example, there is illustrated in Figure 12 the plate 2 shown in Figure 2, but separate elements are substituted on the tread member for the tongues 19 and 21 and the projections 14 and 15 carried by the plate 3. A plurality of tongues 28 and 29 are separately fixed in the top of the tread member 4 in the same relation'asthe tongues 19 and 21 carried by the plate .3. 'Similarly,projections 31 and 32 are embedded in the tread member. I I 3 The tongues and projections may be provided with integrally formed nailsfof the character shown in Figures 7' through 9, or

a split nail of the eharactershown in'Figure 11 may be used. This nail is similar'to that already described, except that it embodies a plurality of integrally formed'nails 33 and 34, oppositely formed,and tapered ina man ne'r already described. The 1 projection 32 shown in Figure 12' is formed with a split nail ofthis character, which will spread in a opposite directions on being. driven, so as to provide a plurality of hooks 35 and 36. It

will-thus be seenthat theplate 3 may be dispensed with and separatesecuringand'locking elements substituted for those normally carried by the plate,if found desirable;

with an integral crosspiece 37 transversely positioned with respect to the piece 18. The

ends of the crosspiece 37 'are provided with plate in the center 'as well nails 24 are dispensed with and a plurality ofcross members-41 and-42-substituteditherefor. The cross members are integrally formed with the plate, being suspended on connecting arms 43 bent downwardly, from the plate. The arms 42 are provided with integral trans verse projections 44 to aid in securing the arms 1n a rubber tread'and thus afford a firm mounting of the plate thereon. In this construction the arms areembedded in the raw rubber previous to vulcanizing and the tread formed with the arms embedded therein.

If it is desired to dispense'withthe plate 3 inthe mounting ofa rubber tread, the secur-Q separately embedded therein, as described in connection with Figure 12, by a construction of the charing and locking members may be acte r'of that shown inFigure 21. An individualtongue member 45 is provided with a downwardly extending hook 46 which it is intendedbe vulcanized on' the rubber when-the I tread, such as 47, is formed. V p r It is manifest that. the securing members 'described in connection with Figures 18 through 21 are subje'ctto" numerous modifications, and the particular forms describedare merely set forth asillu'strativeof a character of members that may beemployed, although 85 In Figure 17, thebottom plate 3 is shown In Figure 22 is shown a modified form of groove in which the'same is stamped above the surface of the plate 2, as at &8. In this eonstruction,-the tongue will likewise fit flush Y with the bottom of the plate 2sothatthethickness of the deviceis the same as that of the where particularly thi-n'plates are employed,

juxtaposed plates, neither the securing or looking members extending above or below the outer surfaces'thereof. i I This construction will befounddesirable to afford a more positive wedging action, as

otherwise the desired inclination ofithe grooves could not be obtained.

'It will be manifest that the device is sus' ceptible to a wide usage on articles other'than only single securing-and locking members any desired number maybe if? shoes, and in Figure 16 is shown a type of constructlon adaptable to other articles. In this construction the plates are round in shape, for securing such'articles as treads on crutches or fastening rugs to a floor.

7 tan It is apparent, however, that the device maybe shaped in any suitable manner to meet the particular requirements, In this construction, the cross member 18 carried by the plate 31is provided with an upwardly projecting and pin 49, located in the center thereof, and the with a corresponding aperture 51. Thefpin engaging theaperture is V intended to center the platesso as to-faciiitate insertion of'the tongues 19 and 21 in the corresponding slots 9 and 11. It will of course be understood that a similar arrangement may be incorporated in any of the several constructions hereinbefore described, if found I desirable.

In Figures 13 through 15 areillustrated modified forms of plates in which longitudinal and transverse 'movement for attaching vand detaching'is substituted for the rota tional movement already described. In these so that the tongue 1s constructions, theplates are provided with securing members cated by the numerals 5 and 6, shown in Fig- 'ure12.- v v I v v The upper plate shown in Figure 13 is pro' vided with a transverse slot 53and a longitudinal tapered groove 54 opening therein adapted to be engaged bya corresponding tongue 55carr1ed by abottom plate, or separately fixed in a tread member, and aslot 5o6 1 adapted to receive a projection of the character of 22 or 23, shown 'picted in Figure in Figure 3, or 31 de- 12. 3 member on a heel, the tongue 55 is inserted engaged by a 7 ,either by the under plateor separately mount- 52 similar to those indi- I In attaching a tread the slot 56 shown in'Figure 13, adapted to-be I 7 cross projection 62 carried ed on a tread member. 1 Attachment of a tread employingthis device is effected by inserting a tongue 63, either carried by an" under 7 separately mounted on the tread in: the slot 58 and moving the plate 3 plate or member, against thetongue until fully engaging with by engagement 7 with the crossed slot61. In either arrangement the plates may gaging the pro It will of course be manifest that,.while have beenshown, employed, and that the same may bear ranged on the plates in a difierent manner from that shown. i

There is accomplished by this invention an attachment in which a rigidwedging action with a spring effect is obtained by the corresponding members whichare automatically locked in position, affording a'se'cure and last ing unionwhich may be easily detached.

While I have shown and described the prei ferred embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein set forth, by way of illustration, as it is apparent that many changes and variations A fastemng device comprising a plurality 1 V 1 79 7 member on aheel' i i the groove 59 and the same locked in position of the cross projection 62 of plates, one of the plates having slots open-x ing in grooves having a tapering spacebetween the bottom of the groovesand the top of the plate therein, the other plate carrying i tongues with their underlying faces tapered 1 adapted to project through said slots to engage the space between the bottom of the groove and thetop of'the' plate to efi'ecta wedging engagement, said slots, grooves and the tongues being so arranged as to" be brought into wedging'engagement' by rotation of'one of the plates.

Intestimony whereof I affix my signature.

" I BENJAMIN RUBIN.

in the slot 53 and the plate pushed tothe rear caused to engage the same being locked in position by engagement of the projection 57 with the slot 56. In the transverse taperedgrooye 59 openingtherebe detached bydisen- 1E actions from the slots and sliding the tongues from the grooves. 

